Air-operated signal switch



BEST AVAILABLE COP".

Fb. 1, 1927. 1,615,853 A W. L. SLAYTON AIR OPERATED SIGNAL SWITCH Filed Jan. 26, 1924 gnua'nfoz being actuate following specification,

Patented Feb. 1, 1927.

BEST AVAILABLE COP.

PATENT oFF c-E.

WALTEB L. SLAYTON, 0F TOLEDO, OHIO.

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Application filed January 26, 1924. Serial No. 688,749. v

"This invention relates to air operated signal switches to a light signal system, particularly for use on autOmobiIesand other vehicles to indicate preferably at both front and rear of the vehicle when it is intended to turn the same either to the right or to the eft. f I

The primary object of the. invention resides in the means employed for effecting an automatic, intermittent opening and closing of the si ailing circuits, such means by fluid pressure generated by a moving of the'vehicle or by the operation of some fluid current-creatingmeans of 'the vehicle, as, for instance, the engine exhaust or the air current created by the fan of theengine cooling system.

The invention is fully described in the and while in its broader aspect it is capable of embodiment in numerous forms, one embodiment thereof is illustrated in the accompanying drawings,

' in which,

Figure 1 illustrates afragmentary elevation in longitudinal section of an automobile embodying the invention. Fig. 2 is an enlarged sectional detail of the fluid actuated circuit interrulpting means em loyed. Fig. 3 is a top p an view thereo {with parts broken away. Fig. 4 is across-section on the line 44=-in Flg. 3.

-Automatic -means,' hereinafter described,

is ro'vided to efiect an intermittent opening and closing of each of the switches 40 so that when a light circuit is closed through any one of the signal linesa flickering of the light is effected. The general operation of the system is as follows:

' The means which includes the vibrator switches M for eifecting intermittent making and breaking of the signal circuits may be of an desiredform and operated in any suitab e-manner. The means illustrated, in the present instance,

, along a. bar 63 disposed within the case and the movable members of which switches are mounted on a'rocker 64 within the case,

whereby movements of the rocker will effect a making andbreakin g of therespective for accomplishing suchpurpose comprises a case mounted onaswitch circuits. The rocker 6d rests on a cam wheel 65, a turning of which is adapted to efiect a predetermined rocking ofthe rocker member 64 to make and break the switch circuits. The cam wheel 65 is mounted on a shaft 66 which is journaled within the case 60 and this shaft carries a worm wheel 67 in mesh with and driven by a worm 68 on a shaft 69.

Fluid pressure is preferably-used to drive the shaft 69, and for such purpose the shaft.

is provided with a propeller wheel or fan '70 disposed within a conduit formed by a casing part 71 attached to the casing 60.

One end of the propeller wheel conduit is disposed, in the present instance, adjacent to the fan 72 of the engine cooling system in position for a portion of the air current set-up by a running of the fan to pass through the conduit and effect a rapid propellin of the wheel 70. It is also apparent that t e fluid current set-up by the engm exhaust or by the movement of the vehicle "could be utilized, if desired, for-operating agparentthatj the vibrator switch. It is also the vibration of the vehicle coul to IoIperate the switch.

' aving thus described my invention, what I claim as new and desire to secure by Letters Patent, is

- 1. A switch mechanism, includinga casing, a stationary and a movable contact in the casing, a shaft, means onthe shaftto rock said movable contact, a housing substantially U-shap'ed in cross-sectionforming a continuation of said casing and having bottom side and front walls, said shaft being journaled in the casing and the front wall .of theh'ousing, a top for the housing spaced from the upper edges of the side walls to provide a transverse passage therethrough between the uppert, ed s of the side walls and the top, andbla es carried be utilized 'by the shaft extendin into the transverse passage whereby. the b ades may be rotated to actuate the switch mechanism. 4

2. A switch mechanism including a casing having closed walls, a stationary and a movable contact in the casing, a shaft having its ends journaled in the front and rear walls of the casing, means onthe shaft to rock said movable contact, a housing forming a continuation of said casing, and having bottom side and top walls, connected to the respective adjacent walls'oi the casing, a second iwmm Q i 1315,8534BESTAVAILABLECOP} shaft in the housing hw'ving' one end diswalls and the top of the housing fon the posed withi'n'said casing means on said end admission and exit of fluid to drivesaid 1 l of the second shaft to --di'ive the first shaft 'bladesiand thereby operate the switch mech from the second shaft and fan blades on nnism. t

5 said second shaft, the front and rear walls of In testimony whereof I have hereunto jthe housin terminating in, a line with the signed my name to this specification.

axis of sai second. shaft to provide a, transverse conduit between the upper edge ofsaid WALTER L. SLAYTON. 

